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Finding the Fourth Proportional to 172,898.12, 238,606.08 and 97,445

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Solution

The fourth proportional to 172,898.12, 238,606.08 and 97,445 is: 134,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,898.12 : 238,606.08 = 97,445 : x
  2. Step 2: Convert to fraction form
    172,898.12/238,606.08 = 97,445/x
  3. Step 3: Cross multiply
    172,898.12x = 238,606.08 × 97,445
  4. Step 4: Simplify right side
    172,898.12x = 23,250,969,465.60
  5. Step 5: Solve for x
    x = 23,250,969,465.60/172,898.12
  6. Step 6: Final answer
    x = 134,477.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.